Engine System:
Detailed information on engine disassembly, assembly, tuning, and diagnostics for the 600cc liquid-cooled twin-cylinder engine.
Fuel System:
Carburetor adjustment, cleaning, and replacement; fuel pump and line service.
Ignition System:
CDI unit, ignition coil testing, spark plug specifications, and timing procedures.
Cooling System:
Coolant specifications, radiator and hose service, thermostat replacement, and leak detection.
Clutch System:
Drive clutch and driven clutch maintenance, adjustment, spring and weight inspection, and belt replacement.
Transmission Drivetrain:
Chain case inspection, lubrication, gear removal/installation, and track drive system service.
Suspension System:
Front and rear suspension component inspection, shock absorber service, ski and spindle maintenance, and bogie wheel service.
Braking System:
Hydraulic brake system service, caliper and master cylinder maintenance, brake pad replacement, and fluid specifications.
Steering System:
Handlebar, steering post, tie rod, and spindle alignment procedures.
Electrical System:
Wiring diagrams, lighting systems, battery testing and maintenance, starter system, and basic electrical troubleshooting.
Body Panels Chassis:
Body panel removal and installation, chassis component inspection, and seat service.
Routine Maintenance:
Oil changes, spark plug replacement, lubrication points, track tension adjustment, and cleaning procedures.
Troubleshooting Diagnostics:
Step-by-step guidance for diagnosing common and complex mechanical and electrical issues, symptom-based problem solving.
Engine Rebuilds:
Detailed instructions for complete engine teardown, inspection, component replacement (pistons, rings, bearings), and reassembly with torque specifications.
Transmission Service:
Clutch service, chain replacement, and drive system adjustments.
Suspension Repair:
Shock absorber rebuilds or replacements, ski alignment, and bogie wheel servicing.
Brake System Repair:
Hydraulic brake bleeding, caliper servicing, and master cylinder replacement.
Electrical Component Testing:
Testing ignition components, stator, rectifier, and starter motor.
Carburetor Tuning:
Jetting recommendations, idle speed adjustment, and synchronisation for optimal performance.
Depth Of Information:
Expert level; covers complete engine overhauls, detailed electrical diagnostics, and advanced suspension tuning.
Diagnostic Charts:
Includes specific diagnostic flowcharts and symptom-to-cause tables.
Torque Specifications:
Provides precise torque values for critical fasteners throughout the vehicle.
Wiring Diagrams:
Detailed and often color-coded electrical wiring schematics.
Engine Type:
Liquid-cooled, 2-stroke, parallel-twin cylinder
Displacement:
597cc (approximate, variants may exist)
Bore X Stroke:
Typically around 73mm x 73mm (specific to 600cc Arctic Cat twin of that era)
Compression Ratio:
Varies by year and specific tuning, generally in the 6.5:1 to 7.5:1 range for this era of 2-stroke performance engines.
Cooling Method:
Liquid Cooling
Horsepower Range:
Approximately 95-115 hp (varies by year and tuning)
Torque Figure:
Not typically published in a single figure for snowmobiles, but focused on mid-range power delivery.
Carburetor Type:
Dual Mikuni VM or similar side-draft carburetors (e.g., 38mm or 40mm)
Fuel Type:
Regular Unleaded Gasoline (87 octane or higher)
Oil Mixture:
Autolube (oil injection system) - requires specific 2-stroke snowmobile oil.
Oil Type:
API-TC or JASO FD certified synthetic 2-stroke snowmobile oil.
Initial Break In:
Specific break-in procedures for new or rebuilt engines, typically involving varying RPMs for the first few hours of operation.
Spark Plug Replacement:
Recommended every 1,500-2,500 miles or annually, depending on usage. Specific plug types like NGK BR9ES or equivalent.
Clutch Inspection:
Inspect drive and driven clutches for wear, belt condition, and proper engagement at every 500-1000 miles.
Track Tension Adjustment:
Check and adjust track tension regularly, typically every 500 miles or as needed based on performance and feel.
Chain Case Lube:
Check and top off or change chain case lubricant annually or every 1000 miles.
Coolant Type:
Ethylene Glycol-based antifreeze/coolant for liquid-cooled engines. Typically a 50/50 mix with distilled water. Specific capacity around 2-3 quarts.
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid.
Chain Case Oil:
Specific gear oil for the chain case, often SAE 80W-90 or equivalent.
Carburetor Fouling:
Common with older 2-stroke engines due to fuel mixtures and idling; requires regular cleaning and adjustment.
Clutch Belt Wear:
Drive belts can wear out prematurely if not properly tensioned or if the clutches are misaligned.
Exhaust Tuning:
Some models might have specific requirements for exhaust system maintenance or carbon buildup removal.
Suspension Wear:
Components like shock bushings and bogie wheel bearings can wear over time, affecting ride quality.
Manufacturer:
Arctic Cat, a long-standing American manufacturer of snowmobiles and ATVs.
Zrt Series Context:
The ZRT line represented Arctic Cat's commitment to performance and racing-inspired designs in the late 80s and 90s.
Technological Advancements:
These models often incorporated advancements in suspension design, engine tuning, and chassis rigidity for their time.
Manufacturing Location:
Likely manufactured in Thief River Falls, Minnesota, USA.